(CNN) -- A Peruvian court Wednesday temporarily revoked the parole of American Lori Berenson, who was convicted of aiding terrorists in that country, a spokesman for Peru's Supreme Court told CNN.

The tribunal found that the judge who granted Berenson conditional release did not properly verify one of two home addresses that Berenson gave the court. Until that second address is inspected by authorities, Berenson will have to return to prison, spokesman Guillermo Gonzales said.

Once the inspection is completed, the same judge who granted Berenson parole can rule to release her again.

Berenson, 40, served nearly 15 years of a 20-year sentence for aiding Peruvian rebels in a 1995 plot to attack the nation's congress and overthrow the government.

In May, Judge Jessica Leon Yarango granted her conditional release. However, Peruvian National Police failed to inspect a second home that Berenson listed as a residence, Gonzales said.

Leon will have to rule whether to grant parole once again after the missed step is remedied or make her complete her sentence.

The tribunal had taken up the Berenson parole case at the behest of federal prosecutors, who say that Berenson had not served enough time to justify the benefit of conditional release, Vice Minister of Justice Luis Marill del Aguila said, according to the state-run Andina news agency.

Berenson turned herself in to authorities Wednesday afternoon, her attorney and ex-husband Anibal Apari told reporters outside of the U.S. Embassy in Lima.

Earlier in the day, there were rumors she had fled when police didn't find her at her home.

Berenson was at the U.S. Embassy at a previously arranged meeting regarding consular issues when she learned of Wednesday's ruling, U.S. press attache James Fennell said.

"It was Lori Berenson's decision to immediately comply with the judicial order and turn herself in voluntarily," he said.